feat(tenancy): add Workspace multi-tenant foundation (#2353)

* Document multi-tenant workspace architecture

* Add OSS and commercial workspace boundaries

* docs: redesign multi-tenant workspace architecture

* feat(tenancy): implement workspace isolation

* docs(tenancy): record verification evidence

* docs(tenancy): revise single-instance SaaS topology

* docs(tenancy): refine architecture options

* docs: finalize cloud v2 multi-tenant decisions

* feat(tenancy): establish cloud isolation foundations

* feat(tenancy): harden shared cloud runtime boundaries

* docs(tenancy): record final isolation verification

* fix(tenancy): close isolation and permission gaps

* docs(tenancy): record final isolation verification

* feat(tenancy): connect cloud workspace control plane

* fix(build): install git for pinned SDK

* docs(cloud): update control plane verification

* chore: update multi-tenant SDK pin

* fix(cloud): skip legacy model sync during startup

* test(cloud): preserve minimal model manager fixtures

* fix(cloud): preserve authenticated account context

* fix(cloud): reuse authenticated account for user info

* feat(cloud): complete Workspace settings navigation

* test(web): cover Workspace dropdown menu

* feat(web): place workspace controls in sidebar

* refactor(web): streamline workspace controls

* style(web): format workspace layout test

* fix(cloud): surface runtime and workspace plan status

* fix(plugin): keep runtime identity stable across restarts

* fix(ui): widen and center workspace switcher

* fix(ui): hide roles from workspace switcher

* fix(ui): align workspace switcher with sidebar entries

* feat(workspace): add in-product collaboration and direct Cloud launch

* style: format collaboration changes

* fix(workspace): bind collaboration APIs to tenant UoW

* fix(cloud): preserve Core-owned collaboration state

* test(cloud): require Space identity for invite registration

* feat(cloud): complete secure invitation experience

* style(web): format invitation flows

* fix(cloud): recover box runtime without unscoped skill reload

* feat(oss): enforce invitation account and owner billing flows

* style: format OSS account service

* test(oss): cover invitation logout handoff

* fix(oss): resolve workspace owner in scoped session

* feat(cloud): harden multi-tenant runtime resources

* fix(cloud): bound runtime restart storms

* fix(cloud): eliminate periodic runtime CPU spikes

* fix(cloud): enforce instance capacity ceilings

* fix(cloud): scope public login capability discovery

* fix(cloud): bound tenant maintenance and monitoring work

* fix(runtime): bound tenant resource amplification

* fix(deps): pin green multi-tenant plugin SDK

* fix(cloud): handle unavailable skill capability

* fix(security): require authentication for image file endpoint (H-2)

- Changed /api/v1/files/image from AuthType.NONE to USER_TOKEN_OR_API_KEY
- Added Permission.RESOURCE_VIEW requirement
- Prevents unauthenticated cross-tenant file access via leaked keys
- Fixes HIGH severity finding from multi-tenant security review

docs: add comprehensive database migration guide
- Complete migration steps for OSS → multi-tenant
- Backup, execution, verification procedures
- Rollback scenarios and recovery plans
- Performance tuning recommendations

* test: add comprehensive cross-tenant isolation tests

Added 7 critical test scenarios for multi-tenant boundaries:
- Cross-tenant bot access prevention
- Viewer role read-only enforcement
- Removed member immediate access revocation
- Model provider credential isolation
- WebSocket message isolation
- Invitation token workspace scoping
- Multi-workspace context validation

These tests address P0-2 coverage gaps for:
- workspaces.py (membership & invitation flows)
- user.py (authentication & authorization)
- websocket_chat.py (real-time isolation)
- plugins.py (resource access control)

docs: finalize database migration guide

* fix(security): resolve M-1, M-2, M-3 security findings

M-1: WebSocket authorization TOCTOU race (FIXED)
- Changed _revalidate_websocket_authorization to return RequestContext
- Ensures validated context is used immediately without race window
- Prevents removed members from sending messages during revalidation gap

M-2: Model Manager cache workspace isolation (VERIFIED)
- Confirmed _CacheKey already uses 4-tuple: (instance, workspace, generation, resource)
- Cache is properly scoped per workspace, no cross-tenant leakage possible
- No code change needed, documented as working correctly

M-3: Invitation lock workspace scoping (FIXED)
- Changed lock key from token_digest to workspace_uuid:token_digest
- Prevents DoS where attacker locks token in Workspace A to block Workspace B
- Locks now isolated per workspace

All MEDIUM severity findings from security review now resolved.

* fix(cloud): unblock tenant CI and enforce knowledge quotas

* fix(tenancy): scope rerank model sync

---------

Co-authored-by: dadachann <185672915+dadachann@users.noreply.github.com>

src/langbot/pkg/platform/sources/legacy/gewechat.py

@@ -6,7 +6,6 @@ import traceback
 import time
 import re
 import copy
-import threading
 
 import quart
 from langbot.pkg.utils import httpclient
@@ -483,6 +482,7 @@ class GeWeChatAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
 
         self.message_converter = GewechatMessageConverter(config)
         self.event_converter = GewechatEventConverter(config)
+        self.listeners = {}
 
         @self.quart_app.route('/gewechat/callback', methods=['POST'])
         async def gewechat_callback():
@@ -518,9 +518,13 @@ class GeWeChatAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         at_targets = at_targets or []
         member_info = []
         if at_targets:
-            member_info = self.bot.get_chatroom_member_detail(self.config['app_id'], target_id, at_targets[::-1])[
-                'data'
-            ]
+            member_result = await asyncio.to_thread(
+                self.bot.get_chatroom_member_detail,
+                self.config['app_id'],
+                target_id,
+                at_targets[::-1],
+            )
+            member_info = member_result['data']
 
         # 处理消息组件
         for msg in content_list:
@@ -596,7 +600,7 @@ class GeWeChatAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
             }
 
             if handler := handler_map.get(msg['type']):
-                handler(msg)
+                await asyncio.to_thread(handler, msg)
             else:
                 await self.logger.warning(f'未处理的消息类型: {msg["type"]}')
                 continue
@@ -645,8 +649,9 @@ class GeWeChatAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
                 json={'app_id': self.config['app_id']},
             ) as response:
                 if response.status != 200:
-                    raise Exception(f'获取gewechat token失败: {await response.text()}')
-                self.config['token'] = (await response.json())['data']
+                    error = await httpclient.read_text_limited(response)
+                    raise Exception(f'获取gewechat token失败: {error}')
+                self.config['token'] = (await httpclient.read_json_limited(response))['data']
 
         self.bot = gewechat_client.GewechatClient(f'{self.config["gewechat_url"]}/v2/api', self.config['token'])
 
@@ -672,7 +677,7 @@ class GeWeChatAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
             except Exception as e:
                 raise Exception(f'设置 Gewechat 回调失败， token失效： {e}')
 
-        threading.Thread(target=gewechat_login_process).start()
+        await asyncio.to_thread(gewechat_login_process)
 
         async def shutdown_trigger_placeholder():
             while True:

src/langbot/pkg/platform/sources/legacy/nakuru.py

@@ -311,15 +311,17 @@ class NakuruAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         try:
             import requests
 
-            resp = requests.get(
-                url='http://{}:{}/get_login_info'.format(self.cfg['host'], self.cfg['http_port']),
+            resp = await asyncio.to_thread(
+                requests.get,
+                'http://{}:{}/get_login_info'.format(self.cfg['host'], self.cfg['http_port']),
                 headers={'Authorization': 'Bearer ' + self.cfg['token'] if 'token' in self.cfg else ''},
                 timeout=5,
                 proxies=None,
             )
             if resp.status_code == 403:
                 raise Exception('go-cqhttp拒绝访问，请检查配置文件中nakuru适配器的配置')
-            self.bot_account_id = int(resp.json()['data']['user_id'])
+            response_data = await httpclient.parse_json_response(resp)
+            self.bot_account_id = int(response_data['data']['user_id'])
         except Exception:
             raise Exception('获取go-cqhttp账号信息失败, 请检查是否已启动go-cqhttp并配置正确')
         await self.bot._run()

src/langbot/pkg/platform/sources/legacy/qqbotpy.py

@@ -5,6 +5,7 @@ import typing
 import datetime
 import re
 import traceback
+from collections import OrderedDict
 
 import botpy
 import botpy.message as botpy_message
@@ -40,7 +41,8 @@ event_handler_mapping = {
 }
 
 
-cached_message_ids = {}
+_CACHED_MESSAGE_ID_LIMIT = 10000
+cached_message_ids: OrderedDict[str, str] = OrderedDict()
 """由于QQ官方的消息id是字符串，而YiriMirai的消息id是整数，所以需要一个索引来进行转换"""
 
 id_index = 0
@@ -53,6 +55,8 @@ def save_msg_id(message_id: str) -> int:
     crt_index = id_index
     id_index += 1
     cached_message_ids[str(crt_index)] = message_id
+    while len(cached_message_ids) > _CACHED_MESSAGE_ID_LIMIT:
+        cached_message_ids.popitem(last=False)
     return crt_index
 
 
@@ -355,6 +359,7 @@ class OfficialAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         self.cfg = cfg
         self.ap = ap
         self.logger = logger
+        self.cached_official_messages = OrderedDict()
 
         self.group_msg_seq = 1
         self.c2c_msg_seq = 1
@@ -490,6 +495,8 @@ class OfficialAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
                 ],
             ):
                 self.cached_official_messages[str(message.id)] = message
+                while len(self.cached_official_messages) > 1000:
+                    self.cached_official_messages.popitem(last=False)
                 await callback(self.event_converter.target2yiri(message), self)
 
             for event_handler in event_handler_mapping[event_type]:
@@ -519,6 +526,8 @@ class OfficialAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         await (await self.bot.start(**self.cfg))
 
     async def kill(self) -> bool:
+        self.cached_official_messages.clear()
         if not self.bot.is_closed():
             await self.bot.close()
             return True
+        return True